DWARF_FORMSTRING(3) | Library Functions Manual | DWARF_FORMSTRING(3)

# NAME

dwarf_formstring — return the value of a STRING class attribute

# LIBRARY

DWARF Access Library (libdwarf, -ldwarf)

# SYNOPSIS

#include <libdwarf.h>

int
dwarf_formstring(Dwarf_Attribute attr, char **ret, Dwarf_Error *err);

# DESCRIPTION

Function dwarf_formstring() sets the location pointed to by argument ret to a pointer to a NUL-terminated string containing the value of the attribute referenced by argument attr. The form of argument attr must be one of DW_FORM_string or DW_FORM_strp.

If argument err is not NULL, it will be used to return an error descriptor in case of an error.

## Memory Management

The memory area referenced by the returned pointer is managed by the DWARF(3) library. The application should not attempt to directly free this memory area.

# RETURN VALUES

Function dwarf_formstring() returns DW_DLV_OK on success. In case of an error, it returns DW_DLV_ERROR and sets argument err.

# ERRORS

Function dwarf_formstring() may fail with the following errors:

[DW_DLE_ARGUMENT]
  Either of arguments attr or ret was NULL.
[DW_DLE_ATTR_FORM_BAD]
  The attribute referenced by argument attr was not of a permitted kind.

# SEE ALSO

dwarf(3), dwarf_attr(3), dwarf_formblock(3), dwarf_formref(3), dwarf_formsdata(3), dwarf_formsig8(3), dwarf_formudata(3), dwarf_hasattr(3)

July 24, 2010 | NetBSD 7.2